@media only screen and (max-width:1000px) {
    .container {
        padding: 0 20px
    }
    header .header_content a {
        display: none
    }
    header ul li a {
        font-size: 14px;
        padding: 10px
    }
    header ul li {
        padding: 10px;
    }
    header .header_content {
        background-position: 100% bottom
    }
    .sidebar .banner h2 {
        font-size: 22px
    }
}

@media only screen and (max-width:768px) {
    .sidebar,
    header .header_box img:nth-child(3),
    .header_box img:nth-child(4),
    header ul {
        display: none
    }
    .content {
        width: 100%
    }
    header .header_content h1 {
        margin-bottom: 160px
    }
    header .header_content {
        background-position: center bottom
    }
    .content h2 {
        font-size: 24px
    }
    .content h3 {
        font-size: 18px
    }
    .content p {
        font-size: 16px
    }
    .content h4 {
        font-size: 22px
    }
    .content h5 {
        font-size: 20px
    }
    .comments h2 {
        font-size: 24px
    }
    .comments article img {
        display: none
    }
}

@media only screen and (max-width:480px) {
    .header_box img:nth-child(2) {
        display: none
    }
    header .header_content h1 {
        font-size: 22px
    }
    header .header_content h1 span {
        font-size: 18px
    }
    .chart article p {
        font-size: 10px
    }
    .content .cta {
        font-size: 20px
    }
}